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Overview

Comprehensive Description

Description

  Common names: hawkfish (English), halcón (Espanol)
 
Oxycirrhites typus Bleeker, 1857


Longnose hawkfish



Body slender, moderately compressed; snout very long (~ ½ head length); upper head profile slightly concave; a fringe of cirri on rear edge of front nostril; mouth moderately large; a row of small canines on jaws with a band of simple teeth inside those; teeth on center but not sides of roof of mouth;  operculum with 1 flat spine; preopercle strongly serrated;  dorsal fin X, 13, continuous, slightly notched between spines and rays,  membranes between spines deeply indented, each spine with 2-4 cirri at the tip; anal fin III, 7; tail fin bluntly straight edged; lower 5-6 rays of the pectoral stout, with membranes deeply notched, distinctly longer than other rays, used for perching on the bottom; pelvic I, 5, its origin behind pectoral base; scales smooth, 51-53 on lateral line; no scales between eyes; 3 rows of large scales on cheek.

Whitish with horizontal and vertical red bands forming a cross-hatch pattern.


Size: to 13 cm.

Habitat: generally seen perched on gorgonians or black coral at depths below 20 m, although associates with small gorgonians in as little as 5 m of water at some eastern Pacific sites.

Depth: 5-100 m.



Widely distributed in the Indo- Pacific; the tip of Baja and the central Gulf of California to Colombia, as well as the Revillagigedos, Galapagos and Malpelo.
   
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Distribution

Zoogeography

See Map (including site records) of Distribution in the Tropical Eastern Pacific 
 
Global Endemism: All species, TEP non-endemic, Indo-Pacific only (Indian + Pacific Oceans), "Transpacific" (East + Central &/or West Pacific), All Pacific (West + Central + East)

Regional Endemism: All species, Eastern Pacific non-endemic, Tropical Eastern Pacific (TEP) non-endemic, Continent + Island (s), Continent, Island (s)

Residency: Resident

Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap), Northern Tropical (Mexican Province to Nicaragua + Revillagigedos), Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
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Red Sea, Indo-Pacific: Seychelles and Mascarenes east to Panama, north to southern Japan and Hawaiian Islands, south to Western Australia, New Caledonia and Tonga.
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Depth

Depth Range (m): 5 (S) - 100 (S)
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Physical Description

Morphology

Size

Length max (cm): 13.0 (S)
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Size

Maximum size: 130 mm TL
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Diagnostic Description

Description

Inhabits steep outer reef slopes exposed to strong currents where it lives in large gorgonians and black corals; has been found as shallow as 10 m to at least 100 m. Feeds on small benthic or planktonic crustaceans. Lays demersal eggs (Ref. 3921).
  • Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
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Ecology

Habitat

Depth: 10 - 100m.
From 10 to 100 meters.

Habitat: reef-associated. Inhabits steep outer reef slopes exposed to strong currents where it lives in large gorgonians and black corals. Feeds on small benthic or planktonic crustaceans. Lays demersal eggs (Ref. 3921). Uncommon to rare in most areas (Ref. 9710).
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Depth range based on 9 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 30 - 110
  Temperature range (°C): 19.490 - 28.798
  Nitrate (umol/L): 0.094 - 22.430
  Salinity (PPS): 34.240 - 35.034
  Oxygen (ml/l): 1.431 - 4.549
  Phosphate (umol/l): 0.187 - 1.826
  Silicate (umol/l): 1.094 - 17.402

Graphical representation

Depth range (m): 30 - 110

Temperature range (°C): 19.490 - 28.798

Nitrate (umol/L): 0.094 - 22.430

Salinity (PPS): 34.240 - 35.034

Oxygen (ml/l): 1.431 - 4.549

Phosphate (umol/l): 0.187 - 1.826

Silicate (umol/l): 1.094 - 17.402
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

Habitat: Reef (rock &/or coral), Reef only, Rocks, Corals, Reef associated (reef + edges-water column & soft bottom)

FishBase Habitat: Reef Associated
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Trophic Strategy

Feeding

Feeding Group: Carnivore, Planktivore

Diet: mobile benthic crustacea (shrimps/crabs), Pelagic crustacea, zooplankton
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Life History and Behavior

Reproduction

Egg Type: Pelagic, Pelagic larva
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Conservation

Conservation Status

IUCN Red List: Not evaluated / Listed

CITES: Not listed
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Wikipedia

Oxycirrhites typus

The longnose hawkfish, Oxycirrhites typus, is a species of hawkfish found on tropical reefs of the Indian Ocean and the Pacific Ocean, where it can be found at depths around 10 to 100 m (33 to 328 ft). It prefers the steep outer slopes of the reefs amongst gorgonians and black corals. This species can reach 13 cm (5.1 in) in total length. It can also be found in the aquarium trade. It is currently the only known member in its genus.[1]

Longnose Hawkfish at the Shedd Aquarium

References[edit]

  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2013). "Oxycirrhites typus" in FishBase. April 2013 version.
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